Our Dobson Cold Climate Boot is designed to keep your feet warmer and drier. Based on our most popular rubber cleated outsole, the upper is crafted from Usa cow hide, then lined with 3M Thinsulate 200 g water resistant Insulation, then surface lined with a soft, cotton stretch lining for comfort. The upper has a “Bellows Tongue” to lower the chance of snow, etc. entering the boot. For further protection, use a water repellent spray on the upper.